CN111876909A - Terahertz antibacterial non-woven fabric and preparation method thereof - Google Patents
Terahertz antibacterial non-woven fabric and preparation method thereof Download PDFInfo
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- CN111876909A CN111876909A CN202010763138.2A CN202010763138A CN111876909A CN 111876909 A CN111876909 A CN 111876909A CN 202010763138 A CN202010763138 A CN 202010763138A CN 111876909 A CN111876909 A CN 111876909A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to the technical field of non-woven fabric preparation, in particular to a terahertz antibacterial non-woven fabric and a preparation method thereof. The terahertz antibacterial non-woven fabric is prepared from the following raw materials in percentage by weight: 5-20% of terahertz functional master batch and 80-95% of spinning-grade polyolefin; the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: (2-10): (0.01-0.07). The invention provides a terahertz antibacterial non-woven fabric, wherein the emissivity of a terahertz waveband emitted by the terahertz antibacterial non-woven fabric can reach 99%, various bacteria can be effectively killed, the bacteriostasis rate of the terahertz antibacterial non-woven fabric on staphylococcus aureus is especially as high as 99%, and the terahertz antibacterial non-woven fabric has excellent anti-aging and infrared heating effects.
Description
Technical Field
The invention relates to the technical field of non-woven fabric preparation, in particular to a terahertz antibacterial non-woven fabric and a preparation method thereof.
Background
The non-woven fabric is a high-technology content in a flexible material production system, has wide market demand, relates to a wide-range modern material industry, develops at an astonishing speed, and is known as the 'sunward industry' in the textile industry. Although the non-woven fabrics produced by different processes have excellent effects in improving sanitary environment and facilitating use. However, human skin and clothes are places where bacteria grow, and the bacteria continuously propagate by taking human excrement such as urea in sweat as a nutrient source and simultaneously discharge ammonia with strong odor. Especially in hospitals, stations, markets, cinemas, public transport vehicles and other places, and living goods easy to breed bacteria, such as: rags, underwear, baby products, old people products, patient products and the like, and the common non-woven fabric can not effectively avoid the propagation infection and cross infection of bacteria. Nowadays, nonwoven fabrics have been used in various fields, particularly in the medical field, and therefore, new requirements for antimicrobial properties of nonwoven fabrics have been made.
Modern medicine proves that the terahertz waves released by the terahertz material can effectively kill bacteria. Terahertz (THz) waves refer to electromagnetic waves with the frequency within the range of 0.1-10 THz (the wavelength is 3000-30 mu m), coincide with millimeter waves in a long wave band, coincide with infrared light in a short wave band, are transition regions from a macroscopic classical theory to a microscopic quantum theory, are transition regions from electronics to photonics, and are called terahertz gaps (THz gaps) of electromagnetic spectrum.
In order to improve the antibacterial performance of the non-woven fabric and expand the application field of the non-woven fabric, the invention provides the terahertz antibacterial non-woven fabric with anti-aging and infrared heating functions.
Disclosure of Invention
In order to solve the technical problems, the invention provides a terahertz antibacterial non-woven fabric in a first aspect, wherein the preparation raw materials of the non-woven fabric at least comprise the following components in percentage by weight: 5-20% of terahertz functional master batch and 80-95% of spinning-grade polyolefin; the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: (2-10): (0.01-0.07).
As a preferable technical scheme of the invention, the particle size of the terahertz mineral material is 50nm-10 μm.
As a preferable technical scheme of the invention, the center grain diameter D50 of the terahertz mineral material is 100nm-800 nm.
As a preferable technical scheme of the invention, the content of silicon oxide in the terahertz mineral material is 50 wt% -80 wt%.
As a preferable technical solution of the present invention, the terahertz mineral material at least includes one of potassium, sodium, iron, phosphorus, calcium, magnesium, strontium, rubidium, niobium, and gallium.
As a preferable technical scheme, the terahertz mineral material is at least one selected from feldspar, medical stone, tourmaline, hornblende, stone needle and ochre.
As a preferable technical scheme of the invention, the weight of the feldspar accounts for at least 25 wt% of the total weight of the terahertz mineral material.
In a preferred embodiment of the present invention, the carrier is at least one selected from PET, PBT, PP, PA, PE, PC, PVC, PEO, EVA, PS, PMMA and ABS.
As a preferred technical solution of the present invention, the spinning-grade polyolefin is polypropylene.
The second aspect of the invention provides a preparation method of the terahertz antibacterial non-woven fabric, which comprises the following steps: the terahertz functional master batch is mixed with spinning-grade polyolefin, and then the terahertz functional master batch is prepared by a continuous one-step method of high-temperature melting, spinning, laying a steel wire and hot-pressing and coiling.
Advantageous effects
The invention provides a terahertz antibacterial non-woven fabric which is prepared by blending and spinning terahertz functional master batches and spinning-grade polyolefin, wherein the emissivity of an emitted terahertz waveband can reach 99%, various bacteria can be effectively killed, and the terahertz antibacterial non-woven fabric has excellent anti-aging and infrared heating effects; secondly, the special type of terahertz mineral material is selected, and the mineral material is coated by the carrier macromolecule to form the master batch, so that the terahertz mineral material is more uniformly dispersed in a non-woven fabric system and is not easy to escape; in addition, through the cooperation of the terahertz mineral materials of special types and particle sizes, the terahertz mineral material not only can ensure that the product has higher terahertz emissivity, but also can increase the smoothness during spinning, thereby avoiding the problem of blockage during spinning, and the prepared fiber has semi-permanent functions, and the problem of weakening the functionality along with the increase of the washing times can not occur.
Drawings
Fig. 1 is a table showing the composition analysis of the terahertz mineral material used in examples 1 to 3 of the present invention.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
The invention provides a terahertz antibacterial non-woven fabric, which comprises the following raw materials in percentage by weight: 5-20% of terahertz functional master batch and 80-95% of spinning-grade polyolefin; the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: (2-10): (0.01-0.07).
Terahertz functional master batch
In the invention, the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: (2-10): (0.01-0.07).
In a preferred embodiment, the weight ratio of the terahertz mineral material, the carrier and the auxiliary agent is 1: (3-6): (0.02-0.05).
In a more preferred embodiment, the weight ratio of the terahertz mineral material, the carrier and the auxiliary agent is 1: 4: 0.035.
terahertz mineral material
In the invention, the particle size of the terahertz mineral material is 50nm-10 μm.
In a more preferred embodiment, the terahertz mineral material has a central particle diameter D50 of 100nm to 800 nm.
In the invention, the processing method of the terahertz mineral material comprises the following steps: carrying out wet-method grading grinding, spray drying or direct dry grinding to obtain nano powder, and carrying out surface modification and coating treatment to improve the dispersibility and prevent secondary agglomeration; the specific embodiment of the surface modification and coating treatment is not particularly limited, and is a technique commonly used by those skilled in the art.
In the invention, the content of silicon oxide in the terahertz mineral material is 50-80 wt%.
In a preferred embodiment, the content of silicon oxide in the terahertz mineral material is 60 wt% to 70 wt%.
In the invention, the terahertz mineral material at least comprises one of potassium, sodium, iron, phosphorus, calcium, magnesium, strontium, rubidium, niobium and gallium.
In a preferred embodiment, the terahertz mineral material simultaneously comprises potassium, sodium, iron, phosphorus, calcium, magnesium, strontium, rubidium, niobium and gallium.
In the invention, the terahertz mineral material is at least one selected from feldspar, medical stone, tourmaline, hornblende, stone needle and ochre.
In a preferred technical scheme, the weight of the feldspar accounts for at least 25 wt% of the total weight of the terahertz mineral material.
In a more preferred embodiment, the terahertz mineral material is a combination of feldspar and medical stone, and the weight ratio of the feldspar to the medical stone is 1: 0.5.
in a preferred technical scheme, the feldspar is selected from at least one of albite, potassium feldspar, orthoclase and anorthite.
In a preferred technical scheme, the feldspar is a combination of potassium feldspar and albite, and the weight ratio of the feldspar to the potassium feldspar to the albite is 1: (0.1-0.5).
In a more preferred embodiment, the weight ratio of potassium feldspar to albite is 1: 0.3.
carrier
In the present invention, the carrier is selected from at least one of PET, PBT, PP, PA, PE, PC, PVC, PEO, EVA, PS, PMMA, and ABS.
In a preferred embodiment, the carrier is one of PP and PE.
In a more preferred embodiment, the carrier is PP.
In the invention, the PP is spinning-grade PP; the source of the spinning grade PP is not particularly limited, and yanshan petrochemical, designation S2040, may be mentioned.
In the present invention, the PET is an abbreviation for polyethylene terephthalate.
In the invention, the PBT is an abbreviation of polybutylene terephthalate.
In the present invention, the PP is an abbreviation for polypropylene.
In the present invention, the PA is an abbreviation for polyamide.
In the present invention, the PE is an abbreviation for polyethylene.
In the present invention, PC is an abbreviation for polycarbonate.
In the present invention, PVC is an abbreviation for polyvinyl chloride.
In the present invention, the PEO is an abbreviation of polyethylene oxide.
In the present invention, the EVA is an abbreviation of ethylene-vinyl acetate copolymer.
In the present invention, the PS is an abbreviation for polystyrene.
In the present invention, PMMA is an abbreviation of polymethyl methacrylate.
In the present invention, the ABS is an abbreviation for acrylonitrile-butadiene-styrene copolymer.
Auxiliary agent
In the present invention, the auxiliary is not particularly limited, and a dispersant, a compatibilizer, a lubricant, a colorant, a surfactant, and the like can be mentioned.
In a preferred embodiment, the auxiliaries are dispersants and compatibilizers.
In a more preferred embodiment, the weight ratio of the dispersant to the compatibilizer is 1: (0.1-0.5).
In a more preferred embodiment, the weight ratio of the dispersant to the compatibilizer is 1: 0.3.
in the invention, the weight ratio of the auxiliary agent to the terahertz mineral material is 1: (0.01-0.06).
In a more preferred embodiment, the weight ratio of the auxiliary agent to the terahertz mineral material is 1: 0.035.
dispersing agent
In the present invention, the dispersant is not particularly limited, and glycidyl methacrylate, polyethylene wax, polypropylene wax, ethylene glycol isooctyl ether, N' -ethylene bis stearamide, maleic anhydride-grafted polypropylene wax, and the like can be mentioned.
In a preferred embodiment, the dispersant is a maleic anhydride grafted polypropylene wax.
Compatilizer
In the present invention, the compatibilizer is not particularly limited, and any compatibilizer that can be generally used in preparing the master batch can be used in the present invention.
In a preferred embodiment, the compatibilizing agent is selected from silane coupling agents.
In a more preferred embodiment, the kind of the silane coupling agent is not particularly limited, and aminopropylmethyldiethoxysilane may be mentioned.
In the invention, the preparation method of the terahertz functional master batch is not particularly limited, and a nanometer processing technology, an organic-inorganic nanometer hybrid dispersion technology, a master batch manufacturing technology and the like can be mentioned.
In a preferred embodiment, the preparation method of the terahertz functional master batch is a master batch manufacturing process.
In a more preferred embodiment, the method for preparing the master batch is not particularly limited, and the master batch is prepared by a method well known in the art.
In the invention, the manufacturing process of the master batch of the terahertz functional master batch comprises the following steps: the terahertz material is prepared by mixing the terahertz mineral material, the polyolefin and the auxiliary agent through organic-inorganic hybrid melting and extrusion granulation.
Spinning grade polyolefins
In the present invention, the spinning grade polyolefin is polypropylene.
In the present invention, the source of the polypropylene is not particularly limited, and swallow mountain petrochemicals, brand number S2040, may be mentioned.
The second aspect of the invention provides a preparation method of the terahertz antibacterial non-woven fabric, which comprises the following steps: the terahertz functional master batch is mixed with spinning-grade polyolefin, and then the terahertz functional master batch is prepared by a continuous one-step method of high-temperature melting, spinning, laying a steel wire and hot-pressing and coiling.
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Examples
Example 1
The embodiment 1 provides a terahertz antibacterial non-woven fabric, which comprises the following raw materials in percentage by weight: 10% of terahertz functional master batch and 90% of spinning-grade polyolefin; the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: 4: 0.035; the center grain diameter D50 of the processed terahertz mineral material is 100nm-800 nm; the terahertz processing method comprises the following steps: carrying out wet-method grading grinding, spray drying or direct dry grinding to obtain nano powder, and carrying out surface modification and coating treatment to improve the dispersibility and prevent secondary agglomeration; the terahertz mineral material is a combination of feldspar and medical stone, and the weight ratio is 1: 0.5; the feldspar is a combination of potassium feldspar and albite, and the weight ratio is 1: 0.3; specific components of the terahertz mineral material are shown in figure 1; the carrier is spinning-grade polypropylene selected from Yanshan petrochemical, and is of a mark S2040; the auxiliary agent is a combination of maleic anhydride grafted polypropylene wax and aminopropyl methyl diethoxy silane, and the weight ratio is 1: 0.3; the manufacturing process of the master batch of the terahertz functional master batch comprises the following steps: the terahertz mineral material, the polyolefin and the auxiliary agent are subjected to organic-inorganic hybrid melting and mixing, and are extruded and granulated to obtain the terahertz inorganic material; the spinning grade polypropylene is selected from Yanshan petrochemical grade number S2040.
The preparation method of the terahertz antibacterial non-woven fabric comprises the following steps: the terahertz functional master batch is mixed with spinning-grade polyolefin, and then the terahertz functional master batch is prepared by a continuous one-step method of high-temperature melting, spinning, laying a steel wire and hot-pressing and coiling.
Example 2
Embodiment 2 provides a terahertz antibacterial non-woven fabric, which comprises the following raw materials in percentage by weight: 5% of terahertz functional master batch and 95% of spinning-grade polyolefin; the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: 2: 0.01; the center grain diameter D50 of the processed terahertz mineral material is 100nm-800 nm; the terahertz processing method comprises the following steps: carrying out wet-method grading grinding, spray drying or direct dry grinding to obtain nano powder, and carrying out surface modification and coating treatment to improve the dispersibility and prevent secondary agglomeration; the terahertz mineral material is a combination of potassium feldspar and albite, and the weight ratio is 1: 0.1; specific components of the terahertz mineral material are shown in figure 1; the carrier is spinning-grade polypropylene selected from Yanshan petrochemical, and is of a mark S2040; the auxiliary agent is a combination of maleic anhydride grafted polypropylene wax and aminopropyl methyl diethoxy silane, and the weight ratio is 1: 0.1; the manufacturing process of the master batch of the terahertz functional master batch comprises the following steps: the terahertz mineral material, the polyolefin and the auxiliary agent are subjected to organic-inorganic hybrid melting and mixing, and are extruded and granulated to obtain the terahertz inorganic material; the spinning grade polypropylene is selected from Yanshan petrochemical grade number S2040.
The preparation method of the terahertz antibacterial non-woven fabric comprises the following steps: the terahertz functional master batch is mixed with spinning-grade polyolefin, and then the terahertz functional master batch is prepared by a continuous one-step method of high-temperature melting, spinning, laying a steel wire and hot-pressing and coiling.
Example 3
Embodiment 3 provides a terahertz antibacterial non-woven fabric, which comprises the following raw materials in percentage by weight: 20% of terahertz functional master batch and 95% of spinning-grade polyolefin; the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: 10: 0.07; the center grain diameter D50 of the processed terahertz mineral material is 100nm-800 nm; the terahertz processing method comprises the following steps: carrying out wet-method grading grinding, spray drying or direct dry grinding to obtain nano powder, and carrying out surface modification and coating treatment to improve the dispersibility and prevent secondary agglomeration; the terahertz mineral material is a combination of feldspar and medical stone, and the weight ratio is 1: 3; the feldspar is a combination of potassium feldspar and albite, and the weight ratio is 1: 0.5; specific components of the terahertz mineral material are shown in figure 1; the carrier is spinning-grade polypropylene selected from Yanshan petrochemical, and is of a mark S2040; the auxiliary agent is a combination of maleic anhydride grafted polypropylene wax and aminopropyl methyl diethoxy silane, and the weight ratio is 1: 0.5; the manufacturing process of the master batch of the terahertz functional master batch comprises the following steps: the terahertz mineral material, the polyolefin and the auxiliary agent are subjected to organic-inorganic hybrid melting and mixing, and are extruded and granulated to obtain the terahertz inorganic material; the spinning grade polypropylene is selected from Yanshan petrochemical grade number S2040.
The preparation method of the terahertz antibacterial non-woven fabric comprises the following steps: the terahertz functional master batch is mixed with spinning-grade polyolefin, and then the terahertz functional master batch is prepared by a continuous one-step method of high-temperature melting, spinning, laying a steel wire and hot-pressing and coiling.
Example 4
Example 4 is different from example 1 in that the terahertz mineral material is tourmaline, which is purchased from a mineral powder processing plant of the source of the guishou county.
Example 5
Example 5 differs from example 1 in that the terahertz mineral material was hornblende, purchased at a mineral powder processing plant of the origin in the guy county.
Example 6
Example 6 differs from example 1 in that both albite and potash feldspar were purchased at the mineral powder processing plant of the origin, guy county.
Example 7
Example 7 provides a nonwoven fabric prepared by a method comprising: the spinning-grade polypropylene is prepared by a continuous one-step method of high-temperature melting, spinning, line laying and hot-pressing coiling; the spinning grade polypropylene is selected from Yanshan petrochemical, and the grade is S2040.
Performance testing
1. And (3) antibacterial property test: the test is carried out according to the GB/T20944.3-2008 standard, and the result of the measured bacteriostasis rate of the terahertz functional fiber to staphylococcus aureus is shown in table 1.
2. Far infrared irradiation temperature rise test: the test is carried out according to the GB/T30127 and 2013 detection and evaluation of far infrared performance of textiles, and the test results are shown in Table 1.
3. Testing terahertz emissivity: the terahertz spectrometer is used for detection, and the test results are shown in table 1.
TABLE 1 results of the Performance test of examples
The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.
Claims (10)
1. The terahertz antibacterial non-woven fabric is characterized by comprising the following raw materials in percentage by weight: 5-20% of terahertz functional master batch and 80-95% of spinning-grade polyolefin; the preparation raw materials of the terahertz functional master batch at least comprise the following components: the terahertz material comprises a terahertz mineral material, a carrier and an auxiliary agent; the weight ratio of the terahertz mineral material to the carrier to the auxiliary agent is 1: (2-10): (0.01-0.07).
2. The terahertz antibacterial non-woven fabric according to claim 1, wherein the particle size of the terahertz mineral material is 50nm-10 μm.
3. The terahertz antibacterial non-woven fabric according to claim 2, wherein the terahertz mineral material has a central particle diameter D50 of 100nm to 800 nm.
4. The terahertz antibacterial non-woven fabric according to claim 1, wherein the content of silicon oxide in the terahertz mineral material is 50 wt% to 80 wt%.
5. The terahertz antibacterial non-woven fabric according to claim 1, wherein the terahertz mineral material at least comprises one of potassium, sodium, iron, phosphorus, calcium, magnesium, strontium, rubidium, niobium and gallium.
6. The terahertz antibacterial non-woven fabric according to claim 1, wherein the terahertz mineral material is at least one selected from feldspar, medical stones, tourmaline, hornblende, stone needles and ochre.
7. The terahertz antibacterial non-woven fabric according to claim 6, wherein the feldspar accounts for at least 25 wt% of the total weight of the terahertz mineral material.
8. The terahertz antibacterial non-woven fabric according to claim 1, wherein the carrier is selected from at least one of PET, PBT, PP, PA, PE, PC, PVC, PEO, EVA, PS, PMMA and ABS.
9. The terahertz antibacterial non-woven fabric of claim 1, wherein the spinning-grade polyolefin is polypropylene.
10. The preparation method of the terahertz antibacterial non-woven fabric according to any one of claims 1 to 9, characterized by comprising the following steps: the terahertz functional master batch is mixed with spinning-grade polyolefin, and then the terahertz functional master batch is prepared by a continuous one-step method of high-temperature melting, spinning, laying a steel wire and hot-pressing and coiling.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150394A (en) * | 2021-12-17 | 2022-03-08 | 无菌时代复合新材料(苏州)有限公司 | Preparation method of antibacterial polypropylene yarn capable of releasing negative ions and prepared polypropylene carpet |
-
2020
- 2020-07-31 CN CN202010763138.2A patent/CN111876909A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150394A (en) * | 2021-12-17 | 2022-03-08 | 无菌时代复合新材料(苏州)有限公司 | Preparation method of antibacterial polypropylene yarn capable of releasing negative ions and prepared polypropylene carpet |
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